19710310

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^2$

素因数の和:189

約数の個数: 48

約数和(自身を含む): 39758688

約数和(自身を除く): 20048378

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 71, 85, 115, 142, 170, 230, 355, 391, 710, 782, 1207, 1633, 1955, 2414, 3266, 3910, 5041, 6035, 8165, 10082, 12070, 16330, 25205, 27761, 50410, 55522, 85697, 115943, 138805, 171394, 231886, 277610, 428485, 579715, 856970, 1159430, 1971031, 3942062, 9855155, 19710310]

約数ペア:

[(1, 19710310), (2, 9855155), (5, 3942062), (10, 1971031), (17, 1159430), (23, 856970), (34, 579715), (46, 428485), (71, 277610), (85, 231886), (115, 171394), (142, 138805), (170, 115943), (230, 85697), (355, 55522), (391, 50410), (710, 27761), (782, 25205), (1207, 16330), (1633, 12070), (1955, 10082), (2414, 8165), (3266, 6035), (3910, 5041)]